DOI:
10.1055/s-00029030
Journal of Pediatric Neurology
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References
Phillips B, Ball C, Sackett D, Straus S, Haynes B, Dawes M.
Oxford Centre for Evidence-Based Medicine Levels of Evidence.
Version 2009. Available at:
http://www.cebm.net/?o=1025 . Accessed June, 2015
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